A Novel Method for the Determination of the Dielectric Properties of Liquids at Microwave Frequencies

A Novel Method for the Determination of the Dielectric Properties of Liquids at Microwave Frequencies

Title:

A Novel Method for the Determination of the Dielectric Properties of Liquids at Microwave Frequencies

Author(s):

Ilona Rolfes, Burkhard Schiek

Source:

Proceedings of the 36th European Microwave Conference

Vol./Issue/Date:

Sept. 2006

Year:

2006

Page(s):

399-402

Abstract:

At microwave frequencies the precise knowledge of the electromagnetic properties of materials is essential. In this article, methods for the determination of the permittivity of liquids are presented. The methods are based on scattering parameter measurements with the help of a vector network analyzer. For the precise extraction of the material parameters and the elimination of systematic errors of the setup, self-calibration procedures, the LNN (line, network, network) and the LRR (line, reflect, reflect) method, are applied. Both methods have in common that the material parameters are already calculable within the so-called self-calibration procedure, so that a full two-port calibration of the whole setup is not necessary. Furthermore, the methods can be realized effectively in a practical setup having the advantage that a rearrangement of the setup is not needed for the material parameter measurements.

Subscribe

About Computer Simulation Technology

CST offers accurate, efficient computational solutions for electromagnetic design and analysis. Our 3D EM simulation software
is user-friendly and enables you to choose the most appropriate method for the design and optimization of devices operating in a wide range of frequencies.